Aaron Carter not obsessed with Hilary Duff?

American singer Aaron Carter says he is not obsessed with his former partner Hilary Duff.
The 26-year-old star, who dated Duff when she was 13, said it is not funny anymore after the critics said he is still pinning for her after he posted a photograph of himself watching an episode of her Disney series, 'Lizzie McGuire', in which he kissed her on Instagram this week, reported Contactmusic.
"It's not my fault that @DisneyChannel was playing my episode of 'Lizzie McGuire' while I had some time to watch TV the other night.
"All of these jokes aren't funny anymore. Let it go because it's starting to creep ME out now," Aaron posted on Twitter.

The former couple parted away in 2003 and the 'Chasing the Sun' star Duff, 27 who has a two-year-old son Luca recently admitted that she felt "uncomfortable" when Aaron declared his love for her in March this year.
"It's...Ugh! I don't know. I don't know what to say about it! Our relationship was so many years ago. I literally haven't seen him ... So, it's uncomfortable," said Duff.
Carter called Duff love of his life after she announced her separation from her husband Mike Comrie in January.
"I'll spend the rest of my life trying to better myself to get back to her. I don't care what ANY of you think. Don't be that stupid douche that loses the love of your life forever... Like me...," he posted on Twitter.